On 2025-02-01 15:23:31 +0000 (+0000), Stephen J. Turnbull wrote: [...] > Another thing that is strange about this site is that it should be > possible to hit that runner with a SIGUSR1 and restart it. This works > for me, but on that system the stuck runner exits, but does not > restart. [...] > - I haven't tried to reproduce the Python 3.10 + Mailman 3.3.6 > configuration and test SIGUSR1 in that configuration yet. Seems > unlikely, waiting for the proverbial "round tuit". [...] > Any ideas would be welcome, including general debugging advice. [...]
It's a bit of hacking, but in other Python-based daemons I work on we've implemented a debug signal handler that can produce tracebacks or thread dumps from the running process. Finding out what the interpreter is executing at a particular point in time can provide some useful insight into where the underlying bug might be hiding. -- Jeremy Stanley
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